Results 261 to 270 of about 61,570 (313)

Mechanically alloyed Cu–Fe studied by Mössbauer spectroscopy

Journal of Alloys and Compounds, 2001
Abstract Recent studies of mechanically alloyed Fe–Cu powder mixtures have suggested differences in the local magnetic environment of iron atoms. For a more accurate definition of this point, ball-milled Cu 70 Fe 30 and Cu 50 Fe 50 alloys were investigated by Mossbauer spectroscopy in the temperature range 4.2–300 K.
Principi G, Spataru T, Gupta R, ENZO, Stefano, Kuncser V, Filoti G, RI Kuncser Victor Eugen/C 4299 2011 FILOTI GEORGE/C 5067 2012   +6 more
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Formation of gamma -Fe by mechanical alloying of Cu-Fe?

IEEE Transactions on Magnetics, 1993
A study of the low temperature magnetic behavior of a metastable fcc-FeCu solid solution obtained by mechanical alloying as well as of the subsequent annealed product is carried out.
Hernando, Antonio, Crespo, Paulina, Yavari, Alain Reza, García Escorial, Asunción, Barandiarán, J.M.   +4 more
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Decomposition of the icosahedral phase in AlCuFe alloys

Materials Science and Engineering: A, 1991
Abstract Two modes of decomposition of the icosahedral phase were observed in rapidly solidified AlCuFe alloys. Discontinuous decomposition of the icosahedral phase proceeds by migration of a reaction front into the icosahedral phase as observed in Al77Cu13Fe10 by peritectoid reaction, in Al70Cu20Fe10 by polymorphic reaction, and in Al65Cu20Fe15 by
Wei Liu, Uwe Köster
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Giant magnetoresistance in mechanically alloyed Ag-Cu-Fe alloys

Nanostructured Materials, 1998
Abstract (Ag0.6Cu0.4)l−xFex alloys with x = 0.10,0.15,0.20, and 0.25 were prepared by mechanically alloying mixtures of elemental Ag, Cu, and Fe powders. A metastable fcc solid solution containing a nanosized distribution of magnetic Fe-rich particles was formed for all compositions. The alloys were characterized in the as-mechanically alloyed (as-MA)
P. Nash, R.B. Schwarz, M.F. Hundley
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Effect of Carbon on the Microstructure of a Cu-Fe Alloy

Solid State Phenomena, 2018
The effect of C addition on the microstructure of a Cu-Fe alloy was investigated by combining the calculation of phase diagram (calphad) and the experimental research. The calphad results indicated that the addition of C substantially enlarged the zone of liquid immiscibility gap in the metastable phase diagram of Cu-Fe alloy.
De Ping Lu, Wei Guo, Jiang Jiang, Lei Lu, Jin Zou, Qing Feng Fu, Ke Ming Liu   +6 more
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Rapid solidification of Cu-Fe-Ni alloys

Materials Science and Engineering: A, 2004
Abstract Cu80−xNixFe20 (x=0, 5 and 20) alloys have been rapidly solidified by planar flow casting. X-ray diffraction (XRD) analysis of as-quenched ribbons shows bcc-Fe precipitates embedded in an fcc phase (x=0), two co-existing fcc solid solutions (x=5) and a complete solid solution of the parent elements (x=20).
M. BARICCO, E. BOSCO, G. ACCONCIAIOCO, P. RIZZI, COISSON, MARCO   +4 more
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Microstructure of Rapidly Solidified Cu-Fe Alloys

MRS Proceedings, 1983
ABSTRACTRapidly solidified ribbons of Cu-Fe alloys with iron contents up to 20 at.−% have been prepared by melt-spinning. Optical and electron microscopy as well as x-ray and electron diffraction techniques were used to characterize quantitatively the microstructure, i.e., grain size and shape, solubility of iron, lattice parameter, volume fraction and
Uwe Köster, Christoph Caesar
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Laser Surface Alloying of Aluminium Alloys with Cu/Fe Metallic Powders

Solid State Phenomena, 2020
In this paper, the influence of laser surface alloying on the structure and mechanical properties of aluminium alloy was analysed. As a parent material aluminium EN AC-51300 alloy was applied. The laser surface alloying was executed by direct introduction of metallic powder Fe/Cu into the remelted area (molten pool).
Wojciech Pakieła, Zbigniew Brytan
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The Mossbauer spectrum model of Cu-Fe alloys

Journal of Physics F: Metal Physics, 1982
The Mossbauer spectrum model was proposed in order to obtain a better understanding of the iron atom 'states' in a supersaturated Cu-Fe solid solution and their changes during the gamma Fe precipitation process and growth of this phase. The model is related to the atomic structure of this alloy.
T J Panek, J Kansy
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Laser Plasma Spectroscopy of Al-Cu-Fe Quasicrystal and Alloy

Applied Spectroscopy, 2003
Electron number density and temperature were determined from laser-induced plasmas produced by irradiating Al-Cu-Fe targets of a quasicrystal and of an alloy of similar composition. The Al(I) atomic emission spectra of the two systems were measured as a function of the distance from the target and of the time delay after laser irradiation.
Satta M, Zeng X, Mao X, Mao S S, Russo R E, Giardini A, Mele A   +6 more
openaire   +4 more sources